New Zealander George Hudson proposed the modern idea of daylight saving in 1895. Germany and Austria-Hungary organized the first implementation, starting on 30 April 1916/ 1 May 1916. Many countries have used it at various times since then, particularly since the energy crisis of the 1970s.

Here is something else related to it from Time:

That Daylight Saving Time began in Germany on May 1, 1916, in the hopes that it would save energy during World War I, according to Michael Downing, author of Spring Forward: The Annual Madness of Daylight Saving Time. But, though Germans were first to mess with their clocks, they likely got the idea from Britain—and from someone whose ideas about Daylight Saving had little to do with conserving fuel.

William Willett had in 1907 published The Waste of Daylight. Willett was inspired by an early-morning epiphany that “the sun shines upon the land for several hours each day while we are asleep” and yet there “remains only a brief spell of declining daylight in which to spend the short period of leisure at our disposal.” Though he did mention that it would save money to reduce the use of artificial lighting, his main purpose was the increase enjoyment of sunlight. He lobbied Parliament for such legislation until his death in 1915—not living to see the law passed in England shortly after it was in Germany. …

Across the pond, the first U.S. law on Daylight Saving Time went into effect on March 19, 1918 for the same fuel saving reasons, about a year after the country entered the war. But again, though the official reason was fuel saving, the U.S. Chamber of Commerce was the major backer for the policy, Downing argues, because Americans getting off work while it was still light out meant they would be more likely to go out shopping in the evening. http://time.com/4549397/daylight-saving-time-history-politics/

Because of the clock change, sunset will be over an hour earlier next Friday in the USA, Canada, Bahamas, Bermuda, Cuba, and Haiti. This change happened in Europe and certain other lands earlier.

Those of us who observe the weekly Sabbath from sunset Friday to sunset Saturday may wish to remember this time change. In my own case, we will have to close our office earlier than normal for the next several months on Fridays.

This will affect not only those in the Churches of God, but others who keep the seventh-day Sabbath such as observant Jews, Messianic Jews, and Seventh-day Adventists.